package com.itheima.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.itheima.mapper.EmpMapper;
import com.itheima.pojo.*;
import com.itheima.service.EmpExprService;
import com.itheima.service.EmpService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.time.LocalDateTime;
import java.util.List;

@Service
public class EmpServiceImpl extends ServiceImpl<EmpMapper,Emp> implements EmpService {
@Autowired
private EmpExprService empExprService;

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void saveEmp(Emp emp) {
        emp.setCreateTime(LocalDateTime.now());
        emp.setUpdateTime(LocalDateTime.now());
        emp.setPassword("123456");
        this.save(emp);
        if(emp.getExprList()!=null&&!emp.getExprList().isEmpty()){
            emp.getExprList().forEach(expr->expr.setEmpId(emp.getId()));
            empExprService.saveBatch(emp.getExprList());
        }
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void updateEmp(Emp emp) {
       emp.setUpdateTime(LocalDateTime.now());
       if(emp==null){
           throw new RuntimeException("员工不存在");
       }
       this.updateById(emp);
       empExprService.remove(new LambdaQueryWrapper<EmpExpr>().eq(EmpExpr::getEmpId,emp.getId()));
        List<EmpExpr> exprList = emp.getExprList();
        if(exprList!=null&&!exprList.isEmpty()){
            exprList.forEach(e->e.setEmpId(emp.getId()));
            empExprService.saveBatch(exprList);
        }
    }

    @Override
    public Emp getEmpById(Integer id) {
        Emp emp = this.getById(id);
        List<EmpExpr> exprList = empExprService.list(new LambdaQueryWrapper<EmpExpr>().eq(EmpExpr::getEmpId, id));
        if(exprList!=null&&!exprList.isEmpty()){
            emp.setExprList(exprList);
        }
        return emp;
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void deleteEmpByIds(List<Integer> ids) {
        this.removeByIds(ids);
        empExprService.remove(new LambdaQueryWrapper<EmpExpr>().in(EmpExpr::getEmpId,ids));
    }
}
